Force-based contextualizing of multiple pages for electronic book reader

ABSTRACT

A system and associated method for contextualizing a page turn in an electronic book pursuant to a maximum amount of force applied by a user in a snap gesture triggering the page turn as performed by an e-reader program running in a tablet device having a strain gauge touch screen. The snap gesture is quantified with data elements including applied pressure and direction of the snap gesture. The quantified snap gesture is utilized in identifying a target page number to display on the strain gauge touch screen responsive to at least one predefined data element of the quantified snap gesture such that the e-reader program enables the user to turn multiple pages of the electronic book by the snap gesture in a manner similar to turning multiple pages of a paper book.

CROSS-REFERENCE TO RELATED APPLICATION

This invention is related to U.S. patent application Ser. No. 13/410,705(Attorney Docket No. END920110073US1) entitled “TIME-BASEDCONTEXTUALIZING OF MULTIPLE PAGES FOR ELECTRONIC BOOK READER”, filed onMar. 2, 2012.

BACKGROUND

The present invention discloses a system and associated method forgrouping multiple pages of an electronic book proportional to a gestureof a user interacting through a touch screen with an electronic bookreader application, which improves user-friendliness of the e-bookreader application by making browsing the e-book feel like browsing oftraditional books. Conventional e-reader applications support sequentialturning of pages one by one, forward or backward, going directly to abeginning or an end of a document, or directly turning to a specificpage when the user provides a page number in a document.

BRIEF SUMMARY

According to one embodiment of the present invention, a method forcontextualizing a page turn in an electronic book pursuant to a maximumamount of force applied by a user in a snap gesture triggering the pageturn, wherein said method is performed by an e-reader program running ina tablet device, comprises: quantifying the snap gesture, responsive toreceiving the snap gesture via a strain gauge touch screen of the tabletdevice, wherein the quantified snap gesture comprises a first dataelement of applied pressure of the snap gesture (AP) and a second dataelement of direction of the snap gesture (Dr); identifying a target pagenumber for the page turn in the electronic book by use of the quantifiedsnap gesture; and displaying, on the strain gauge touch screen, a targetpage of the electronic book that corresponds to the target page numberfrom said identifying.

According to one embodiment of the present invention, a computer programproduct comprises a computer readable memory unit that embodies acomputer readable program code. The computer readable program codecontains instructions that, when run by a processor of a computersystem, implement contextualizing a page turn in an electronic bookpursuant to a maximum amount of force applied by a user in a snapgesture triggering the page turn.

According to one embodiment of the present invention, a computer systemcomprises a processor, a memory coupled to the processor, and a computerreadable storage device coupled to the processor, said storage devicecontaining program code configured to be executed by the processor viathe memory to implement contextualizing a page turn in an electronicbook pursuant to a maximum amount of force applied by a user in a snapgesture triggering the page turn.

According to one embodiment of the present invention, a process forsupporting computer infrastructure, said process comprising providing atleast one support service for at least one of creating, integrating,hosting, maintaining, and deploying computer-readable code in acomputing system, wherein the code in combination with the computingsystem is capable of performing contextualizing a page turn in anelectronic book pursuant to a maximum amount of force applied by a userin a snap gesture triggering the page turn.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 illustrates a system 10 for force-based contextualizing ofmultiple pages for an e-reader application 14 employed in a tabletdevice 12, in accordance with embodiments of the present invention.

FIG. 2 is a flowchart depicting a method for force-based contextualizingof multiple pages for the e-reader application in FIG. 1, as performedby the force-based contextualizer, in accordance with the embodiments ofthe present invention.

FIG. 3 is a flowchart depicting snap detection performed by theforce-based contextualizer in step 100 of FIG. 2, in accordance with theembodiments of the present invention.

FIG. 4 is a flowchart depicting target page identification performed bythe force-based contextualizer in step 200 of FIG. 2, in accordance withthe embodiments of the present invention.

FIG. 5 illustrates a computer system 90 used for force-basedcontextualizing of multiple pages for an e-reader application employedin a tablet device, in accordance with the embodiments of the presentinvention.

DETAILED DESCRIPTION

FIG. 1 illustrates a system 10 for force-based contextualizing ofmultiple pages for an e-reader application 14 employed in a tabletdevice 12, in accordance with embodiments of the present invention.

The system 10 comprises a user 11 and the tablet device 12. The tabletdevice 12 comprises a strain gauge (SG) touch screen 13, the e-readerapplication 14 and data storage 21. The user 11 operates the e-readerapplication 14 by interacting with the SG touch screen 13 in accessingdocuments stored in the data storage 21.

The SG touch screen 13 is a touch screen of a type utilizing a straingauge, which enables measuring amount of force/pressure applied oncontact points of the SG touch screen 13. The SG touch screen 13 may beimplemented on top of capacitive/resistive touch screen, having all thefeatures supported in capacitive/resistive touch screens, utilizing bothlinger time and applied pressure in determining how many pages to turn.The SG touch screen 13 also recognizes a location where the user 11contacts on the SG touch screen 13, and duration how long the user 11continues the contact made on respective locations. The user 11 may use,inter alia, a finger, a stylus, etc., in making the touch motions on theSG touch screen 13.

The e-reader application 14 comprises a force-based contextualizer 16which enables the user 11 to turn arbitrary number of pages of thedocument by interacting with the SG touch screen 13 with a snap gesture.The snap gesture comprises an initial contact and a sweeping motion,wherein the initial contact is made upon the user 11 pressing the SGtouch screen 13 at a contact point with a certain amount of force, andwherein the sweeping motion refers to a unidirectional movement of thecontact point along the SG touch screen 13 following the initialcontact. The SG touch screen 13 captures the snap gesture data andsubsequently transfers the captured snap gesture data to the e-readerapplication 14. In this specification, the snap gesture data comprisesApplied Pressure (AP), direction (Dr) and distance (D), wherein AP ismeasured by the strain gauge of the SG touch screen 13 as Z-axisdeflection as being pressed by the user 11, wherein the Z-axis isvertical to the surface of the SG touch screen 13, wherein Dr isselected from a group consisting of {forward, backward} indicating thedirection of the sweeping motion, and wherein D is defined as a tracklength of the sweeping motion on the SG touch screen 13. In thisspecification, terms “applied pressure”, “maximum pressure”, and “force”are used interchangeably to represent a quantified pressure valueapplied on a surface of the SG touch screen 13. See FIG. 2 infra forsteps performed by the force-based contextualizer 16.

The data storage 21 comprises a section/page turn table 22, asection/page turn function 23, and a document 24. The document 24 is anelectronic book displayed on the SG touch screen 13 that the user 11 isviewing and turning pages with snap gestures. The section/page turntable 22 and/or the section/page turn function 23 are utilized by thee-reader application 14 to calculate a number of pages to turn based onAP, Dr, and D of the snap gesture data captured by the SG touch screen13 as currently given by the user 11.

The section/page turn table 22 and the section/page turn function 23 areemployed in calculating the number of pages to turn by the force-basedcontextualizer 16. See descriptions of FIG. 2 infra for details of thesection/page turn table 22 and the section/page turn function 23 as usedby the force-based contextualizer 16.

FIG. 2 is a flowchart depicting a method for force-based contextualizingof multiple pages for the e-reader application in FIG. 1 supra, asperformed by the force-based contextualizer, in accordance with theembodiments of the present invention.

In step 100, the force-based contextualizer detects snap gesture made bythe user. See description of FIG. 3 infra for detailed operations ofstep 100. Then the force-based contextualizer proceeds with step 200.

In step 200, the force-based contextualizer identifies a target page ofthe document to display in accordance with the snap gesture detectedfrom step 100 supra. See description of FIG. 4 infra for detailedoperations of step 200. Then the force-based contextualizer terminatesprocessing the snap gesture.

FIG. 3 is a flowchart depicting snap detection performed by theforce-based contextualizer in step 100 of FIG. 2 supra, in accordancewith the embodiments of the present invention.

In step 110, the force-based contextualizer detects a point of contact(PC) for the snap gesture on the strain gauge (SG) touch screen of thetablet device, on which the user interacts with the tablet device forpage turning. Then the force-based contextualizer proceeds with step120.

Steps 120 through 160 are repeatedly performed while the PC exists, thatis while the user maintains a continuous contact on the SG touch screen.The force-based contextualizer initializes Applied Pressure (AP) valueto zero (0) only when the force-based contextualizer proceeds with step120 from step 110 supra. Upon losing the PC indicating that the userdiscontinues the contact detected as the PC in step 110 supra, then theforce-based contextualizer proceeds with step 170 infra.

In step 120, the force-based contextualizer measures force/pressure (F)as the user pushes the PC. Then the force-based contextualizer proceedswith step 130.

In step 130, the force-based contextualizer determines whether or notthe F measured in step 120 is greater than current value of AP. If theforce-based contextualizer determines that F is greater than AP, thenthe force-based contextualizer proceeds with step 140. If theforce-based contextualizer determines that F is less than or equal toAP, then the force-based contextualizer proceeds with step 150.

In step 140, the force-based contextualizer updates AP value with Fbecause currently applied pressure (F) is greater than previouslyrecorded applied pressure (AP), indicating that the user increasespressure at the PC on the SG screen surface. Then the force-basedcontextualizer loops back to step 120.

In step 150, the force-based contextualizer determines whether or notthe PC moves on the SG touch screen surface. If the force-basedcontextualizer determines that the PC moves on the SG touch screensurface, then the force-based contextualizer proceeds with step 160. Ifthe force-based contextualizer determines that the PC stands still onthe SG touch screen surface, then the force-based contextualizer loopsback to step 120.

In step 160, the force-based contextualizer records the sweeping motionof the snap gesture as determined in step 150 supra. Then theforce-based contextualizer loops back to step 120.

In step 170, the force-based contextualizer calculates direction (Dr)value and distance (D) value of the snap gesture, respectively, based onmotion data recorded in step 160 supra, because a current snap gesturehas concluded by the user. Then the force-based contextualizer proceedswith step 180.

In step 180, the force-based contextualizer stores Dr value, D value,respectively calculated from step 170, and AP value updated in step 140for the current snap gesture and make the current snap gesture datavalues available to step 200 of FIG. 2 supra for target pageidentification. Then the force-based contextualizer proceeds with step200 of FIG. 2 supra.

FIG. 4 is a flowchart depicting target page identification performed bythe force-based contextualizer in step 200 of FIG. 2 supra, inaccordance with the embodiments of the present invention.

In step 210, the force-based contextualizer determines whether Dr valueof the snap gesture data generated in step 100 of FIG. 1 supra is either“forward” or “backward”. If the force-based contextualizer determinesthat the Dr value of the snap gesture data is “forward”, then theforce-based contextualizer proceeds with step 211. If the force-basedcontextualizer determines that the Dr value of the snap gesture data is“backward”, then the force-based contextualizer proceeds with step 219.

In step 211, the force-based contextualizer maps the Dr value to amathematical addition (+) operation for following steps as the snapgesture is directed forward as represented by the Dr value “forward”.Then the force-based contextualizer proceeds with step 220.

In step 219, the force-based contextualizer maps the Dr value to amathematical subtraction (−) operation for following steps as the snapgesture is directed backward as represented by the Dr value “backward”.Then the force-based contextualizer proceeds with step 220.

In step 220, the force-based contextualizer determines whether or notthe document is organized in sections grouping pages into disjointgroups. If the force-based contextualizer determines that the documentis organized in sections as the disjoint groups of pages, then theforce-based contextualizer proceeds with step 223. If the force-basedcontextualizer determines that the document is not organized insubcomponent but has only pages, then the force-based contextualizerproceeds with step 227. In other embodiment of the present invention,wherein the document has more than two subcomponents hierarchicallygrouping pages, steps 223, 233, 243, and 253 are repeated as a unit fora next level of subcomponent of the document until the force-basedcontextualizer finds a target page.

In step 223, the force-based contextualizer loads a section turn mappingselected from a section turn table and a section turn function, from thedata storage to memory. In one embodiment of the present invention,either a section turn table or a section turn function is implementedfor the force-based contextualizer to map the snap gesture to arespective section turn value. In another embodiment of the presentinvention, both the section turn table and the section turn function areimplemented and the user selects which one to load in configurationsettings of the tablet device. A pressure unit that is accuratelymeasured by the force-based contextualizer is employed to indicate agiven amount of perpendicular force over a unit area employed in thesection turn table. Examples of the pressure unit may be, inter alia,Newton per square meter (N/m²), pound-force per square inch (psi), etc.In the same embodiment, the section turn table consists of four (4)section turn table records, {0, 0.1, 1}, {0.1, 0.2, 2}, {0.2, 0.5, 5},and {0.5, MaxAP, MaxSecTrn}, wherein first two columns of a section turntable record represent a respective range of applied pressure (AP)values, wherein a first column represents a lower bound of therespective range of AP values, wherein a second column represents anupper bound of the respective range of AP values, and a third columnrepresents a section turn value corresponding to the first two columnsof the respective section turn table record, such that a first sectionturn table record {0, 0.1, 1} indicates that a first range of AP valuesbetween zero (0) and 0.1 pressure unit corresponds to a first sectionturn value of one (1), a second section turn table record {0.1, 0.2, 2}indicates that a second range of AP values between 0.1 and 0.2 pressureunit corresponds to a second section turn value of two (2), a thirdsection turn table record {0.2, 0.5, 5} indicates that a third range ofAP values between 0.2 and 0.5 pressure unit corresponds to a thirdsection turn value of five (5), and a fourth section turn table record{0.5, MaxAP, MaxSecTrn} indicates that a fourth range of AP valuesgreater than 0.5 pressure unit up to a predefined maximum appliedpressure value MaxAP corresponds to a fourth section turn value of amaximum number of section turns in the document MaxSecTrn. In anotherembodiment of the present invention, the section turn function isimplemented as a function of AP that maps to a section turn value foreach AP value, that is, f(AP)→SecTrn, wherein AP represents a value fromApplied Value domain, and wherein SecTrn represents a value from SectionTurn domain. In still other embodiment of the present invention, sectionturn values correspond to a respective combination of AP and D, suchthat both applied pressure and distance are utilized in determining howmany sections to turn. Utilizing two parameters of AP and D in mappingthe section turn value is applicable in both the section turn table andthe section turn function. Then the force-based contextualizer proceedswith step 233.

In step 233, the force-based contextualizer finds a section turn valueassociated with AP of the snap gesture in the section turn mappingloaded in step 223 supra. Then the force-based contextualizer proceedswith step 243.

In step 243, the force-based contextualizer calculates a target sectionbased on a current section, the section turn value found in step 233supra, and the operation mapped in steps 210, 211 or 219 supra, whereinthe current section indicates a section value in the document at time ofdetecting the snap gesture. Then the force-based contextualizer proceedswith step 253.

In step 253, the force-based contextualizer determines a predefined pagenumber in the target section as a target page to display. The predefinedpage number may be, inter alia, a random page number within the targetsection, a smallest page number of the target section, etc. Then theforce-based contextualizer proceeds with step 260.

In step 227, the force-based contextualizer loads a page turn mappingselected from a page turn table and a page turn function, from the datastorage to memory. In one embodiment of the present invention, eitherthe page turn table or the page turn function is implemented for theforce-based contextualizer to map the snap gesture to a respective pageturn value. In another embodiment of the present invention, both thepage turn table and the page turn function are implemented and the userselects which one to load in configuration settings of the tabletdevice. In one embodiment of the present invention, the page turn tableconsists of four (4) page turn table records, {0, 0.1, 5}, {0.1, 0.2,10}, {0.2, 0.5, 15}, and {0.5, MaxAP, MaxPgTrn}, wherein first twocolumns of a page turn table record represent a respective range ofapplied pressure (AP) values, wherein a first column represents a lowerbound of the respective range of AP values, wherein a second columnrepresents an upper bound of the respective range of AP values, and athird column represents a page turn value corresponding to the first twocolumns of the respective page turn table record, such that a first pageturn table record {0, 0.1, 5} indicates that a first range of AP valuesbetween zero (0) and 0.1 pressure unit corresponds to a first page turnvalue of five (5), a second page turn table record {0.1, 0.2, 10}indicates that a second range of AP values between 0.1 and 0.2 pressureunit corresponds to a second page turn value of ten (10), a third pageturn table record {0.2, 0.5, 15} indicates that a third range of APvalues between 0.2 and 0.5 pressure unit corresponds to a third pageturn value of fifteen (15), and a fourth section turn table record {0.5,MaxAP, MaxPgTrn} indicates that a fourth range of AP values greater than0.5 pressure unit up to a predefined maximum applied pressure valueMaxAP corresponds to a fourth page turn value of a maximum number ofpage turns in the document MaxPgTrn. In another embodiment of thepresent invention, the page turn function is implemented as a functionof AP that maps to a page turn value for each AP value, that is,f(AP)→PgTrn, wherein AP represents a value from Applied Value domain,and wherein PgTrn represents a value from Page Turn domain. In stillother embodiment of the present invention, page turn values correspondto a respective combination of AP and D, such that both applied pressureand distance are utilized in determining how many pages to turn.Utilizing two parameters of AP and D in mapping the page turn value isapplicable in both the page turn table and the page turn function. Thenthe force-based contextualizer proceeds with step 237.

In step 237, the force-based contextualizer finds a page turn valueassociated with AP of the snap gesture in the page turn mapping loadedin step 227 supra. Then the force-based contextualizer proceeds withstep 247.

In step 247, the force-based contextualizer calculates a target page tobased on a current page, the page turn value from step 237 supra, andthe operation previously mapped in steps 210, 211 or 219 supra, whereinthe current page indicates a page number value in the document at timeof detecting the snap gesture. If the operation is an addition, then thetarget page results from advancing the page turn value from the currentpage. If the operation is a subtraction, then the target page resultsfrom taking the page turn value from the current page such that the pageadvancement is reversed. Then the force-based contextualizer proceedswith step 260.

In step 260, the force-based contextualizer display the target pagecalculated in step 253 or step 247, supra, on the SG touch screen of thetablet device. Then the force-based contextualizer terminates processingthe current snap gesture.

FIG. 5 illustrates a computer system 90 used for force-basedcontextualizing of multiple pages for an e-reader application employedin a tablet device, in accordance with the embodiments of the presentinvention.

The computer system 90 comprises a processor 91, an input device 92coupled to the processor 91, an output device 93 coupled to theprocessor 91, and memory devices 94 and 95 each coupled to the processor91. In this specification, the computer system 90 represents any type ofprogrammable data processing apparatus.

The input device 92 is utilized to receive input data 96 into thecomputer system 90. The input device 92 may be, inter alia, a keyboard,a mouse, a keypad, a touch screen, a scanner, a voice recognitiondevice, a sensor, a network interface card (NIC), a Voice/video overInternet Protocol (VOIP) adapter, a wireless adapter, a telephoneadapter, a dedicated circuit adapter, etc. The output device 93 isutilized to communicate results generated by the computer program code97 to a user of the computer system 90. The output device 93 may be,inter alia, a printer, a plotter, a computer screen, a magnetic tape, aremovable hard disk, a floppy disk, a NIC, a VOIP adapter, a wirelessadapter, a telephone adapter, a dedicated circuit adapter, an audioand/or visual signal generator, a light emitting diode (LED), etc.

Any of the components of the present invention can be deployed, managed,serviced, etc. by a service provider that offers to deploy or integratecomputing infrastructure with respect to a process for force-basedcontextualizing of multiple pages for the e-reader application of thepresent invention. Thus, the present invention discloses a process forsupporting computer infrastructure, comprising integrating, hosting,maintaining and deploying computer-readable code into a computing system(e.g., computing system 90), wherein the code in combination with thecomputing system is capable of performing a method for force-basedcontextualizing of multiple pages for the e-reader application.

In another embodiment, the invention provides a method that performs theprocess steps of the invention on a subscription, advertising and/or feebasis. That is, a service provider, such as a Solution Integrator, canoffer to create, maintain, support, etc., a process for force-basedcontextualizing of multiple pages for the e-reader application of thepresent invention. In this case, the service provider can create,maintain, support, etc., a computer infrastructure that performs theprocess steps of the invention for one or more customers. In return, theservice provider can receive payment from the customer(s) under asubscription and/or fee agreement, and/or the service provider canreceive payment from the sale of advertising content to one or morethird parties.

While FIG. 5 shows the computer system 90 as a particular configurationof hardware and software, any configuration of hardware and software, aswould be known to a person of ordinary skill in the art, may be utilizedfor the purposes stated supra in conjunction with the particularcomputer system 90 of FIG. 5. For example, the memory devices 94 and 95may be portions of a single memory device rather than separate memorydevices.

As will be appreciated by one skilled in the art, aspects of the presentinvention may be embodied as a system, method or computer programproduct. Accordingly, aspects of the present invention may take the formof an entirely hardware embodiment, an entirely software embodiment(including firmware, resident software, micro-code, etc.) or anembodiment combining software and hardware aspects that may allgenerally be referred to herein as a “circuit,” “module” or “system.”Furthermore, aspects of the present invention may take the form of acomputer program product embodied in one or more computer readablemedium(s) having computer readable program code embodied thereon.

Any combination of one or more computer readable medium(s) may beutilized. The computer readable medium may be a computer readable signalmedium or a computer readable storage medium. In this specification, theterm “memory device” 94, 95 represents a computer readable storagemedium. A computer readable storage medium may be, for example, but notlimited to, an electronic, magnetic, optical, electromagnetic, infrared,or semiconductor system, apparatus, or device, or any suitablecombination of the foregoing. More specific examples (a non-exhaustivelist) of the computer readable storage medium would include thefollowing: an electrical connection having one or more wires, a portablecomputer diskette, a hard disk, a random access memory (RAM), aread-only memory (ROM), an erasable programmable read-only memory (EPROMor Flash memory), an optical fiber, a portable compact disc read-onlymemory (CD-ROM), an optical storage device, a magnetic storage device,or any suitable combination of the foregoing. In the context of thisdocument, a computer readable storage medium may be any tangible mediumthat can contain, or store a program for use by or in connection with aninstruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signalwith computer readable program code embodied therein, for example, inbaseband or as part of a carrier wave. Such a propagated signal may takeany of a variety of forms, including, but not limited to,electro-magnetic, optical, or any suitable combination thereof. Acomputer readable signal medium may be any computer readable medium thatis not a computer readable storage medium and that can communicate,propagate, or transport a program for use by or in connection with aninstruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmittedusing any appropriate medium, including but not limited to wireless,wireline, optical fiber cable, radio frequency (RF), etc., or anysuitable combination of the foregoing.

Computer program code 97 for carrying out operations for aspects of thepresent invention may be written in any combination of one or moreprogramming languages, including an object oriented programming languagesuch as Java, Smalltalk, C++ or the like and conventional proceduralprogramming languages, such as the “C” programming language or similarprogramming languages. The computer program code 97 may execute entirelyon the user's computer, partly on the user's computer, as a stand-alonesoftware package, partly on the user's computer and partly on a remotecomputer or entirely on the remote computer or server. In the latterscenario, the remote computer may be connected to the user's computerthrough any type of network, including a local area network (LAN) or awide area network (WAN), or the connection may be made to an externalcomputer (for example, through the Internet using an Internet ServiceProvider).

Aspects of the present invention are described with reference toflowchart illustrations and/or block diagrams of methods, apparatus(systems) and computer program products according to embodiments of theinvention. It will be understood that each block of the flowchartillustrations and/or block diagrams, and combinations of blocks in theflowchart illustrations and/or block diagrams, can be implemented bycomputer program instructions. The term “computer program instructions”is interchangeable with the term “computer program code” 97 in thisspecification. These computer program instructions may be provided to aprocessor of a general purpose computer, special purpose computer, orother programmable data processing apparatus to produce a machine, suchthat the instructions, which execute via the processor of the computeror other programmable data processing apparatus, create means forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks.

These computer program instructions may also be stored in a computerreadable storage medium that can direct a computer, other programmabledata processing apparatus, or other devices to function in a particularmanner, such that the instructions stored in the computer readablestorage medium produce an article of manufacture including instructionswhich implement the function/act specified in the flowchart and/or blockdiagram block or blocks.

The computer program instructions may also be loaded onto a computer,other programmable data processing apparatus, or other devices to causea series of operational steps to be performed on the computer, otherprogrammable apparatus or other devices to produce a computerimplemented process such that the instructions which execute on thecomputer or other programmable apparatus provide processes forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks.

The flowchart and block diagrams in the Figures illustrate thearchitecture, functionality, and operation of possible implementationsof systems, methods and computer program products according to variousembodiments of the present invention. In this regard, each block in theflowchart or block diagrams may represent a module, segment, or portionof code, which comprises one or more executable instructions forimplementing the specified logical function(s). It should also be notedthat, in some alternative implementations, the functions noted in theblock may occur out of the order noted in the figures. For example, twoblocks shown in succession may, in fact, be executed substantiallyconcurrently, or the blocks may sometimes be executed in the reverseorder, depending upon the functionality involved. It will also be notedthat each block of the block diagrams and/or flowchart illustration, andcombinations of blocks in the block diagrams and/or flowchartillustration, can be implemented by special purpose hardware-basedsystems that perform the specified functions or acts, or combinations ofspecial purpose hardware and computer instructions.

The corresponding structures, materials, acts, and equivalents of allmeans or step plus function elements in the claims are intended toinclude any structure, material, or act for performing the function incombination with other claimed elements as specifically claimed. Thedescription of the present invention has been presented for purposes ofillustration and description, but is not intended to be exhaustive orlimited to the invention in the form disclosed. Many modifications andvariations will be apparent to those of ordinary skill in the artwithout departing from the scope and spirit of the invention. Theembodiment was chosen and described in order to best explain theprinciples of the invention and the practical application, and to enableothers of ordinary skill in the art to understand the invention forvarious embodiments with various modifications as are suited to theparticular use contemplated.

What is claimed is:
 1. A method for contextualizing a page turn in anelectronic book pursuant to a maximum amount of force applied by a userin a snap gesture triggering the page turn, wherein said method isperformed by an e-reader program running in a tablet device, said methodcomprising: quantifying the snap gesture, responsive to receiving thesnap gesture via a strain gauge touch screen of the tablet device,wherein the quantified snap gesture comprises a first data element ofapplied pressure of the snap gesture (AP) and a second data element ofdirection of the snap gesture (Dr); identifying a target page number forthe page turn in the electronic book by use of the quantified snapgesture; and displaying, on the strain gauge touch screen, a target pageof the electronic book that corresponds to the target page number fromsaid identifying.
 2. The method of claim 1, said quantifying comprising:detecting a point of contact that initiates the snap gesture on thestrain gauge touch screen and initializing a maximum pressure (MP) aszero (0); measuring force on the detected point of contact as beingapplied by the user; updating the MP with the measured force, upondetermining that the force from said measuring is greater than the MP;recording movement of the point of contact, while the point of contactexists on the strain gauge touch screen; calculating AP as being equalto the updated MP, upon determining that the point of contact is lost onthe strain gauge touch screen; calculating Dr from the recorded movementof the point of contact, wherein the calculated Dr is selected from agroup consisting of {forward, backward}; and storing the calculated APand Dr as the quantified snap gesture such that the e-reader programutilizes the stored AP and Dr in said identifying.
 3. The method ofclaim 2, said quantifying further comprising: calculating a third dataelement of distance of the snap gesture (D) indicating a track lengthmade by the point of contact during said recording the movement; andstoring the calculated AP, Dr, and D as the quantified snap gesture suchthat the e-reader program utilizes the stored AP, Dr, and D in saididentifying.
 4. The method of claim 1, said identifying comprising:mapping Dr to a respective mathematical operation corresponding to eachDr value, wherein a first Dr value “forward” corresponds to addition(+), and wherein a second Dr value “backward” corresponds to subtraction(−); determining that the electronic book is organized in sectionsgrouping pages into disjoint sets within the electronic book;discovering a section turn value corresponding to the quantified snapgesture; calculating a target section number by applying themathematical operation corresponding to Dr from said mapping to acurrent section value and the discovered section turn value, wherein thecurrent section value is a section value being displayed when the snapgesture is received; and selecting the target page number in thecalculated target section number pursuant to a predefined manner.
 5. Themethod of claim 1, said identifying comprising: mapping Dr to arespective mathematical operation corresponding to each Dr value,wherein a first Dr value “forward” corresponds to addition (+), andwherein a second Dr value “backward” corresponds to subtraction (−);determining that the electronic book is organized in disjoint pageswithin the electronic book; and discovering a page turn valuecorresponding to the quantified snap gesture; calculating a target pagenumber by applying the mathematical operation corresponding to Dr fromsaid mapping to a current page value and the discovered page turn value,wherein the current page value is a page value being displayed when thesnap gesture is received.
 6. A computer program product comprising: acomputer readable storage medium having a computer readable program codeembodied therein, said computer readable program code containinginstructions that perform contextualizing a page turn in an electronicbook pursuant to a maximum amount of force applied by a user in a snapgesture triggering the page turn, wherein said contextualizing isperformed by an e-reader program running in a tablet device, saidcontextualizing comprising: quantifying the snap gesture, responsive toreceiving the snap gesture via a strain gauge touch screen of the tabletdevice, wherein the quantified snap gesture comprises a first dataelement of applied pressure of the snap gesture (AP) and a second dataelement of direction of the snap gesture (Dr); identifying a target pagenumber for the page turn in the electronic book by use of the quantifiedsnap gesture; and displaying, on the strain gauge touch screen, a targetpage of the electronic book that corresponds to the target page numberfrom said identifying.
 7. The computer program product of claim 6, saidquantifying comprising: detecting a point of contact that initiates thesnap gesture on the strain gauge touch screen and initializing a maximumpressure (MP) as zero (0); measuring force on the detected point ofcontact as being applied by the user; updating the MP with the measuredforce, upon determining that the force from said measuring is greaterthan the MP; recording movement of the point of contact, while the pointof contact exists on the strain gauge touch screen; calculating AP asbeing equal to the updated MP, upon determining that the point ofcontact is lost on the strain gauge touch screen; calculating Dr fromthe recorded movement of the point of contact, wherein the calculated Dris selected from a group consisting of {forward, backward}; and storingthe calculated AP and Dr as the quantified snap gesture such that thee-reader program utilizes the stored AP and Dr in said identifying. 8.The computer program product of claim 7, said quantifying furthercomprising: calculating a third data element of distance of the snapgesture (D) indicating a track length made by the point of contactduring said recording the movement; and storing the calculated AP, Dr,and D as the quantified snap gesture such that the e-reader programutilizes the stored AP, Dr, and D in said identifying.
 9. The computerprogram product of claim 6, said identifying comprising: mapping Dr to arespective mathematical operation corresponding to each Dr value,wherein a first Dr value “forward” corresponds to addition (+), andwherein a second Dr value “backward” corresponds to subtraction (−);determining that the electronic book is organized in sections groupingpages into disjoint sets within the electronic book; discovering asection turn value corresponding to the quantified snap gesture;calculating a target section number by applying the mathematicaloperation corresponding to Dr from said mapping to a current sectionvalue and the discovered section turn value, wherein the current sectionvalue is a section value being displayed when the snap gesture isreceived; and selecting the target page number in the calculated targetsection number pursuant to a predefined manner.
 10. The computer programproduct of claim 6, said identifying comprising: mapping Dr to arespective mathematical operation corresponding to each Dr value,wherein a first Dr value “forward” corresponds to addition (+), andwherein a second Dr value “backward” corresponds to subtraction (−);determining that the electronic book is organized in disjoint pageswithin the electronic book; and discovering a page turn valuecorresponding to the quantified snap gesture; calculating a target pagenumber by applying the mathematical operation corresponding to Dr fromsaid mapping to a current page value and the discovered page turn value,wherein the current page value is a page value being displayed when thesnap gesture is received.
 11. A computer system comprising a processor,a memory coupled to the processor, and a computer readable storagedevice coupled to the processor, said storage device containing programcode configured to be executed by the processor via the memory toimplement contextualizing a page turn in an electronic book pursuant toa maximum amount of force applied by a user in a snap gesture triggeringthe page turn, wherein said contextualizing is performed by an e-readerprogram running in a tablet device, said contextualizing comprising:quantifying the snap gesture, responsive to receiving the snap gesturevia a strain gauge touch screen of the tablet device, wherein thequantified snap gesture comprises a first data element of appliedpressure of the snap gesture (AP) and a second data element of directionof the snap gesture (Dr); identifying a target page number for the pageturn in the electronic book by use of the quantified snap gesture; anddisplaying, on the strain gauge touch screen, a target page of theelectronic book that corresponds to the target page number from saididentifying.
 12. The computer system of claim 11, said quantifyingcomprising: detecting a point of contact that initiates the snap gestureon the strain gauge touch screen and initializing a maximum pressure(MP) as zero (0); measuring force on the detected point of contact asbeing applied by the user; updating the MP with the measured force, upondetermining that the force from said measuring is greater than the MP;recording movement of the point of contact, while the point of contactexists on the strain gauge touch screen; calculating AP as being equalto the updated MP, upon determining that the point of contact is lost onthe strain gauge touch screen; calculating Dr from the recorded movementof the point of contact, wherein the calculated Dr is selected from agroup consisting of {forward, backward}; and storing the calculated APand Dr as the quantified snap gesture such that the e-reader programutilizes the stored AP and Dr in said identifying.
 13. The computersystem of claim 12, said quantifying further comprising: calculating athird data element of distance of the snap gesture (D) indicating atrack length made by the point of contact during said recording themovement; and storing the calculated AP, Dr, and D as the quantifiedsnap gesture such that the e-reader program utilizes the stored AP, Dr,and D in said identifying.
 14. The computer system of claim 11, saididentifying comprising: mapping Dr to a respective mathematicaloperation corresponding to each Dr value, wherein a first Dr value“forward” corresponds to addition (+), and wherein a second Dr value“backward” corresponds to subtraction (−); determining that theelectronic book is organized in sections grouping pages into disjointsets within the electronic book; discovering a section turn valuecorresponding to the quantified snap gesture; calculating a targetsection number by applying the mathematical operation corresponding toDr from said mapping to a current section value and the discoveredsection turn value, wherein the current section value is a section valuebeing displayed when the snap gesture is received; and selecting thetarget page number in the calculated target section number pursuant to apredefined manner.
 15. The computer system of claim 11, said identifyingcomprising: mapping Dr to a respective mathematical operationcorresponding to each Dr value, wherein a first Dr value “forward”corresponds to addition (+), and wherein a second Dr value “backward”corresponds to subtraction (−); determining that the electronic book isorganized in disjoint pages within the electronic book; and discoveringa page turn value corresponding to the quantified snap gesture;calculating a target page number by applying the mathematical operationcorresponding to Dr from said mapping to a current page value and thediscovered page turn value, wherein the current page value is a pagevalue being displayed when the snap gesture is received.
 16. A processfor supporting computer infrastructure, said process comprisingproviding at least one support service for at least one of creating,integrating, hosting, maintaining, and deploying computer-readable codein a computing system, wherein the code in combination with thecomputing system is capable of performing contextualizing a page turn inan electronic book pursuant to a maximum amount of force applied by auser in a snap gesture triggering the page turn, wherein saidcontextualizing is performed by an e-reader program running in a tabletdevice, said contextualizing comprising: quantifying the snap gesture,responsive to receiving the snap gesture via a strain gauge touch screenof the tablet device, wherein the quantified snap gesture comprises afirst data element of applied pressure of the snap gesture (AP) and asecond data element of direction of the snap gesture (Dr); identifying atarget page number for the page turn in the electronic book by use ofthe quantified snap gesture; and displaying, on the strain gauge touchscreen, a target page of the electronic book that corresponds to thetarget page number from said identifying.
 17. The process of claim 16,said quantifying comprising: detecting a point of contact that initiatesthe snap gesture on the strain gauge touch screen and initializing amaximum pressure (MP) as zero (0); measuring force on the detected pointof contact as being applied by the user; updating the MP with themeasured force, upon determining that the force from said measuring isgreater than the MP; recording movement of the point of contact, whilethe point of contact exists on the strain gauge touch screen;calculating AP as being equal to the updated MP, upon determining thatthe point of contact is lost on the strain gauge touch screen;calculating Dr from the recorded movement of the point of contact,wherein the calculated Dr is selected from a group consisting of{forward, backward}; and storing the calculated AP and Dr as thequantified snap gesture such that the e-reader program utilizes thestored AP and Dr in said identifying.
 18. The process of claim 17, saidquantifying further comprising: calculating a third data element ofdistance of the snap gesture (D) indicating a track length made by thepoint of contact during said recording the movement; and storing thecalculated AP, Dr, and D as the quantified snap gesture such that thee-reader program utilizes the stored AP, Dr, and D in said identifying.19. The process of claim 16, said identifying comprising: mapping Dr toa respective mathematical operation corresponding to each Dr value,wherein a first Dr value “forward” corresponds to addition (+), andwherein a second Dr value “backward” corresponds to subtraction (−);determining that the electronic book is organized in sections groupingpages into disjoint sets within the electronic book; discovering asection turn value corresponding to the quantified snap gesture;calculating a target section number by applying the mathematicaloperation corresponding to Dr from said mapping to a current sectionvalue and the discovered section turn value, wherein the current sectionvalue is a section value being displayed when the snap gesture isreceived; and selecting the target page number in the calculated targetsection number pursuant to a predefined manner.
 20. The process of claim16, said identifying comprising: mapping Dr to a respective mathematicaloperation corresponding to each Dr value, wherein a first Dr value“forward” corresponds to addition (+), and wherein a second Dr value“backward” corresponds to subtraction (−); determining that theelectronic book is organized in disjoint pages within the electronicbook; and discovering a page turn value corresponding to the quantifiedsnap gesture; calculating a target page number by applying themathematical operation corresponding to Dr from said mapping to acurrent page value and the discovered page turn value, wherein thecurrent page value is a page value being displayed when the snap gestureis received.